1. Faculty of Geology, Geophysics and Environmental Protection, AGH University of Kraków, al. Mickiewicza 30, 30-059 Kraków, Poland
2. Department of Earth Sciences, Uppsala University, Villavägen 16, SE-752 36 Uppsala, Sweden
3. Institute of Geological Sciences, University of Wrocław, Pl. M. Borna 9, 50-204 Wrocław, Poland
4. Department of Geosciences, Swedish Museum of Natural History, Stockholm, Sweden